Motor



April 25, 1939. A. s. HARTANV MOTOR Filed Feb. 18, 1937 N n W 7 u. R E N ao N mw vm v @HLWWWMWWMW W W @A 7% uw e Y l nk .2 1w B mM... I L n w @n W Pamesa Apr. as, ma

UNITED STATES PATENT OFFICE Application Femm 1s, 1937, sei-lai No. 126,490

Claims.

This Invention relates to a motor.

An object of the invention is to provide an improved drive means for use, for example, with a skinning knife.

Other objects of the invention will be apparent from the description`and claims which follow.

The drive means of the present invention comprises a rotor rigidly secured to a shaft and rotatably driven byuid pressure, such as compressed air, delivered through a series of spaced jets. By way of illustration and not by way of limitation, the drive means of the present invention is shown connected with a skinning knife comprising a pair of knife blades having serrated cutting edges and slidably mounted in parallel abutting relationship for relatively opposite movements.

Reference is had to the drawing in which like characters of reference are used to designate similar elements.

Figure 1 'is a side viewof a Skinning knife provided with a drive means constructed in accord- Figure 6 is a sectional view taken on line 5 6 of Figure 5. l

The Skinning knife illustrated in the drawing, comprises a pair of relatively long thin knife blades I and 2 provided with serrated cutting edges 3 and 4 and slidably mounted in parallel abutting relationship for relatively opposite recipi'ocal movement. Knife blades I and 2 are respectively secured, as at 5 and 6, with connecting rods 1 and I slidably mounted for reciprocal movement in bearings 3 and I l rigidly securedin housing Il. Y

spaced arms I2 and I3 are secured to connecting rods 1 and l, as at I4 and I5. Arms I2 and I3 are each provided witha pair of spaced roller bearings IG engageable with radialcam surfaces I1 and Il of cam disk I3. Cam disk I9 is rigidly o secured to rotatable shaft 20 journaled in suitable antifriction bearing 2i mounted in end plate 24. End 22 of shaft 2l is extended through opening 23 of end plate 24 for mounting rotor 25. It will be seen that cam disk Il, when rotated by u shaft 2l, serves to reciprocate` connecting rods 1 (c1. ass-5s) and 3 and thus the knife blades I and 2 in a relatively opposite movement.

Rotor 25 is pinioned or otherwise secured to shaft 20 and is provided with a series of peripheral recesses 26 against which compressed air, issuing from jets 21 of manifold assembly 28, is forcibly directed to rotatably drive shaft 20 and thus the cam disk I3.

' As shown in Figures 5 and 6, the mouth 29 of each of the recesses 26 is tapered inwardly to a. narrow throat 30 having a closed bottom' 3I. Such a construction provides greater impact of the air directed against recesses 26 and thus increased power to rotor 25.

As shown in Figures 3 and 4, manifold assembly 23 comprises a series of tubes 32 secured at one end, as by bolts 33, to end plate 24 and cooperatively connected at their opposite end with tubular ring 34. Tubes 32 are circularly arranged in spaced relation around the periphery of rotor 25 and are each provided with an outlet 21, hereinbefore mentioned, for directing compressed air against recesses 26 of rotor 25.

Compressed air, from a source of supply notv shown, is passed through flexible hose 35 thread'- ed, as at 36, to valve 31 which is provided with a series of radial conduits 38 each communicating with ring 34.

It will be seen that compressed air entering ring 34 will distribute through the several tubes 32 and issue from jets 21 against therecesses 26 of rotor 25. 'Ihe impacts of air against recesses 26 will rotate rotor 25 and thus shaft 20 and cam disky I ilA whence connecting rods 1 and 8 -and knife blades I and 2 will be reciprocated in a relatively opposite movement.

It will also be seen that each of the tubes 32 and their respective jets 21 provide an individual source of `power at spaced points relative to the periphery of rotor 25 thus providing a smooth equilibrium and increased power tov drive shaft 20. In practice, al series of eight jets has been to the'shaft, and a manifold assembly comprising a series of tubes coaxially arranged in spaced relation relative to the periphery of the rotor,

each of the tubes being provided with an outletV Jet adapted for directing uid under pressure against the rotor recesses and a uid supply means connecting each of the tubes.

y2. In combination with a drive shaft, a drive means comprising a rotor provided with a plurality of peripheral recesses and rigidly secured to the shaft, and a manifold assembly comprising a series of tubes coaxially arranged in spaced relation relative to the periphery of the rotor, each of the tubes being provided with Aan outlet jet adapted for directing uid under pressure against the rotor recesses, and' means for uniformly supplying iluid under pressure to each of the tubes comprising a tubular ring connecting each oi' the tubes andin communication therewith.

3. In combination with a drive shaft, a drive means comprising a rotor provided with a plurality of peripheral recesses and rigidly secured to the shaft, and a manifold assembly comprising a series of tubes coaxially arranged in spaced relation relative to the periphery of the rotor, each of the tubes being provided with an outlet jet adapted for directing-duid under pressure against the rotor recesses, and means for uniformly supplying iluid under pressure to each of tubes being provided with an outlet jet adapted for directing iluid under pressure against the rotor recesses and a fluid supply means connecting each of the tubes.

5. In combination with a drive shaft, a drive means comprising a rotor rigidly secured to the shaft, .the rotor being provided with a plurality of peripheral recesses, the rotor recesses in transverse cross section being tapered inwardly to a reduced throat and terminated in a closed bottom, and a manifold assembly comprising a. series of tubes coaxially arranged in spaced relation relative to the periphery of the rotor, each of the tubes being provided with an outlet jet adapted for directing fluid under pressure against the rotor recesses, and means for uniformly supplying iluid under pressure to each of the tubes comprising a tubular ring connecting each of the tubes and in communication therewith, a uid supply line and a series of conduits connecting the supply 30 line with the tubular ring.

ANDREW. s. HARTANov. 

